Mirrors_Framework/nuttx
1
0
Fork 0
mirror of https://github.com/apache/nuttx.git synced 2026-06-06 08:36:24 +08:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

PIC32MX1/2 pin selection logic; Mirtoo LEDs, SPI2, and UART2 configuration

Browse Source 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4853 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2012-06-20 17:37:20 +00:00
parent d3b2685b9b
commit 0d5236174c
9 changed files with 614 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files
configs/mirtoo/README.txt
+36 -4
View File
@@ -1,4 +1,4 @@
configs/pic32mx README
configs/mirtoo README
=====================
This README file discusses the port of NuttX to the DTX1-4000L "Mirtoo" module.
@@ -11,6 +11,7 @@ Contents
PIC32MX250F128D Pin Out
Toolchains
Loading NuttX with ICD3
LED Usage
PIC32MX Configuration Options
Configurations
@@ -53,15 +54,15 @@ PIN PIC32 SIGNAL(s) BOARD SIGNAL/USAGE
--- ------------------------------------------------ ---------------------------------- ----------------------------------
7 VCAP VCAP Not available off module
--- ------------------------------------------------ ---------------------------------- ----------------------------------
8 PGED2/RPB10/D+/CTED11/RB10 FUNC0 FUNC0, to FT230XS RXD
PGED2 Debug Channel 2 data Not available
8 PGED2/RPB10/D+/CTED11/RB10 FUNC0 FUNC0, to FT230XS RXD and debug port
PGED2 Debug Channel 2 data Used at boot time for ICD3
RPB10 Peripheral Selection, PORTB, Pin 10 Used for UART RXD
D+ USB D+ Not available
CTED11 CTMU External Edge Input 11 Not available
RB10 PORTB, Pin 10 Not available
--- ------------------------------------------------ ---------------------------------- ----------------------------------
9 PGEC2/RPB11/D-/RB11 FUNC1 FUNC1, to FT230XS TXD
PGEC2 Debug Channel 2 clock Not available
PGEC2 Debug Channel 2 clock Used at boot time for ICD3
RPB11 Peripheral Selection, PORTB, Pin 11 Used for UART TXD
D- USB D- Not available
RB11 PORTB, Pin 11 Not available
@@ -412,6 +413,35 @@ Loading NuttX with ICD3
# to the top-level build directory. It is the only
# required input to mkpichex.
LED Usage
=========
The Mirtoo module has 2 user LEDs labeled LED0 and LED1 in the schematics:
--- ----- --------------------------------------------------------------
PIN Board Notes
--- ----- --------------------------------------------------------------
RC8 LED0 Grounded, high value illuminates
RC9 LED1 Grounded, high value illuminates
The Dimitech DTX1-4000L EV-kit1 supports 3 more LEDs, but there are not
controllable from software.
If CONFIG_ARCH_LEDS is defined, then NuttX will control these LEDs as
follows:
ON OFF
------------------------- ---- ---- ---- ----
LED0 LED1 LED0 LED1
------------------------- ---- ---- ---- ----
LED_STARTED 0 OFF OFF --- ---
LED_HEAPALLOCATE 1 ON OFF --- ---
LED_IRQSENABLED 2 OFF ON --- ---
LED_STACKCREATED 3 ON ON --- ---
LED_INIRQ 4 ON N/C OFF N/C
LED_SIGNAL 4 ON N/C OFF N/C
LED_ASSERTION 4 ON N/C OFF N/C
LED_PANIC 4 ON N/C OFF N/C
PIC32MX Configuration Options
=============================
@@ -522,11 +552,13 @@ PIC32MX Configuration Options
CONFIG_PIC32MX_PMP - Parallel Master Port
CONFIG_PIC32MX_CM1 - Comparator 1
CONFIG_PIC32MX_CM2 - Comparator 2
CONFIG_PIC32MX_CM3 - Comparator 3
CONFIG_PIC32MX_RTCC - Real-Time Clock and Calendar
CONFIG_PIC32MX_DMA - DMA
CONFIG_PIC32MX_FLASH - FLASH
CONFIG_PIC32MX_USBDEV - USB device
CONFIG_PIC32MX_USBHOST - USB host
CONFIG_PIC32MX_CTMU - CTMU
PIC32MX Configuration Settings
DEVCFG0:
configs/mirtoo/include/board.h
+60 -3
View File
@@ -42,6 +42,9 @@
****************************************************************************/
#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <stdbool.h>
#endif
/****************************************************************************
* Pre-Processor Definitions
@@ -85,15 +88,53 @@
#define BOARD_WD_PRESCALER 8 /* Watchdog pre-scaler */
/* LED definitions **********************************************************/
/* The Mirtoo module has 2 user LEDs labeled LED0 and LED1 in the schematics:
*
* --- ----- --------------------------------------------------------------
* PIN Board Notes
* --- ----- --------------------------------------------------------------
* RC8 LED0 Grounded, high value illuminates
* RC9 LED1 Grounded, high value illuminates
*
* The Dimitech DTX1-4000L EV-kit1 supports 3 more LEDs, but there are not
* controllable from software.
*/
/* LED index values for use with pic32mx_setled() */
#define PIC32MX_MIRTOO_LED0 0
#define PIC32MX_MIRTOO_LED1 1
#define PIC32MX_MIRTOO_NLEDS 2
/* LED bits for use with pic32mx_setleds() */
#define PIC32MX_MIRTOO_LED0_BIT (1 << PIC32MX_MIRTOO_LED0)
#define PIC32MX_MIRTOO_LED1_BIT (1 << PIC32MX_MIRTOO_LED1)
/* If CONFIG_ARCH_LEDS is defined, then NuttX will control these LEDs as
* follows:
* ON OFF
* ------------------------- ---- ---- ---- ----
* LED0 LED1 LED0 LED1
* ------------------------- ---- ---- ---- ----
* LED_STARTED 0 OFF OFF --- ---
* LED_HEAPALLOCATE 1 ON OFF --- ---
* LED_IRQSENABLED 2 OFF ON --- ---
* LED_STACKCREATED 3 ON ON --- ---
* LED_INIRQ 4 ON N/C OFF N/C
* LED_SIGNAL 4 ON N/C OFF N/C
* LED_ASSERTION 4 ON N/C OFF N/C
* LED_PANIC 4 ON N/C OFF N/C
*/
#define LED_STARTED 0
#define LED_HEAPALLOCATE 1
#define LED_IRQSENABLED 2
#define LED_STACKCREATED 3
#define LED_INIRQ 4
#define LED_SIGNAL 5
#define LED_ASSERTION 6
#define LED_PANIC 7
#define LED_SIGNAL 4
#define LED_ASSERTION 4
#define LED_PANIC 4
/****************************************************************************
* Public Types
@@ -116,6 +157,22 @@ extern "C" {
#define EXTERN extern
#endif
/****************************************************************************
* Name: pic32mx_ledinit, pic32mx_setled, and pic32mx_setleds
*
* Description:
* If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board
* LEDs. If CONFIG_ARCH_LEDS is not defined, then the following interfaces
* are available to control the LEDs from user applicaitons.
*
****************************************************************************/
#ifndef CONFIG_ARCH_LEDS
EXTERN void pic32mx_ledinit(void);
EXTERN void pic32mx_setled(int led, bool ledon);
EXTERN void pic32mx_setleds(uint8_t ledset);
#endif
#undef EXTERN
#ifdef __cplusplus
}
configs/mirtoo/ostest/defconfig
+7 -11
View File
@@ -123,8 +123,6 @@ CONFIG_PIC32MX_MICROCHIPL_LITE=n
#
CONFIG_PIC32MX_WDT=n
CONFIG_PIC32MX_RTCC=n
CONFIG_PIC32MX_TIMER1=n
CONFIG_PIC32MX_TIMER2=n
CONFIG_PIC32MX_TIMER3=n
CONFIG_PIC32MX_TIMER4=n
@@ -143,13 +141,15 @@ CONFIG_PIC32MX_I2C1=n
CONFIG_PIC32MX_I2C2=n
CONFIG_PIC32MX_SPI1=n
CONFIG_PIC32MX_SPI2=n
CONFIG_PIC32MX_UART1=y
CONFIG_PIC32MX_UART2=n
CONFIG_PIC32MX_PMP=n
CONFIG_PIC32MX_UART1=n
CONFIG_PIC32MX_UART2=y
CONFIG_PIC32MX_ADC=n
CONFIG_PIC32MX_PMP=n
CONFIG_PIC32MX_CVR=n
CONFIG_PIC32MX_CM1=n
CONFIG_PIC32MX_CM2=n
CONFIG_PIC32MX_CM3=n
CONFIG_PIC32MX_RTCC=n
CONFIG_PIC32MX_OSC=y
CONFIG_PIC32MX_DDP=n
CONFIG_PIC32MX_FLASH=n
@@ -161,10 +161,6 @@ CONFIG_PIC32MX_USBHOST=n
CONFIG_PIC32MX_IOPORTA=y
CONFIG_PIC32MX_IOPORTB=y
CONFIG_PIC32MX_IOPORTC=y
CONFIG_PIC32MX_IOPORTD=y
CONFIG_PIC32MX_IOPORTE=y
CONFIG_PIC32MX_IOPORTF=y
CONFIG_PIC32MX_IOPORTG=y
#
# PIC32MX Configuration Settings
@@ -204,8 +200,8 @@ CONFIG_PIC32MX_ICESEL=1
# CONFIG_UARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
# CONFIG_UARTn_2STOP - Two stop bits
#
CONFIG_UART1_SERIAL_CONSOLE=y
CONFIG_UART2_SERIAL_CONSOLE=n
CONFIG_UART1_SERIAL_CONSOLE=n
CONFIG_UART2_SERIAL_CONSOLE=y
CONFIG_UART1_TXBUFSIZE=256
CONFIG_UART2_TXBUFSIZE=256
configs/mirtoo/src/Makefile
+3 -3
View File
@@ -38,10 +38,10 @@
CFLAGS += -I$(TOPDIR)/sched
ASRCS =
CSRCS = up_boot.c
CSRCS = up_boot.c up_leds.c
ifeq ($(CONFIG_ARCH_LEDS),y)
CSRCS += up_leds.c
ifeq ($(CONFIG_PIC32MX_SPI2),y)
CSRCS += up_spi2.c
endif
AOBJS = $(ASRCS:.S=$(OBJEXT))
configs/mirtoo/src/mirtoo-internal.h
+4 -4
View File
@@ -69,15 +69,15 @@ extern "C" {
#endif
/************************************************************************************
* Name: pic32mx_spiinitialize
* Name: pic32mx_spi2initialize
*
* Description:
* Called to configure SPI chip select GPIO pins for the PCB Logic board.
* Called to configure SPI2 chip select GPIO pins for the Mirtoo module.
*
************************************************************************************/
#if defined(CONFIG_PIC32MX_SPI1) || defined(CONFIG_PIC32MX_SPI2)
EXTERN void weak_function pic32mx_spiinitialize(void);
#ifdef CONFIG_PIC32MX_SPI2
EXTERN void weak_function pic32mx_spi2initialize(void);
#endif
/************************************************************************************
configs/mirtoo/src/up_boot.c
+44 -4
View File
@@ -48,16 +48,52 @@
#include "up_internal.h"
#include "pic32mx-internal.h"
#include "pic32mx-pps.h"
#include "mirtoo-internal.h"
/************************************************************************************
* Definitions
************************************************************************************/
#define GPIO_U2TX (GPIO_OUTPUT|GPIO_PORTB|GPIO_PIN10)
#define GPIO_U2RX (GPIO_INPUT|GPIO_PORTB|GPIO_PIN11)
/************************************************************************************
* Private Functions
************************************************************************************/
/************************************************************************************
* Name: pic32mx_uartinitialize
*
* Description:
* When mounted on the DTX1-4000L EV-kit1 board, serial output is avaiable through
* an FT230X device via the FUNC0 and FUNC1 module outputs
*
* ---------- ------ ----- ------ -------------------------
* BOARD OUTPUT PIN SIGNAL NOTES
* ---------- ------ ----- ------ -------------------------
* FT230X RXD FUNC0 RPB11 U2RX UART2 RX (Also PGEC2)
* FT230X TXD FUNC1 RPB10 U2TX UART2 TX (Also PGED2)
*
************************************************************************************/
static inline void pic32mx_uartinitialize(void)
{
#ifdef CONFIG_PIC32MX_UART2
/* Make sure that TRIS pins are set correctly. Configure the UART pins as digital
* inputs and outputs first.
*/
pic32mx_configgpio(GPIO_U2TX);
pic32mx_configgpio(GPIO_U2RX);
/* Configure UART TX and RX pins to RPB10 and 11, respectively */
putreg32(PPS_INSEL_RPB11, PIC32MX_PPS_U2RXR);
putreg32(PPS_OUTSEL_U2TX, PIC32MX_PPS_RPB10R);
#endif
}
/************************************************************************************
* Public Functions
************************************************************************************/
@@ -74,14 +110,18 @@
void pic32mx_boardinitialize(void)
{
/* Configure the console UART */
pic32mx_uartinitialize();
/* Configure SPI chip selects if 1) at least one SPI is enabled, and 2) the weak
* function pic32mx_spiinitialize() has been brought into the link.
* function pic32mx_spi2initialize() has been brought into the link.
*/
#if defined(CONFIG_PIC32MX_SPI1) || defined(CONFIG_PIC32MX_SPI2)
if (pic32mx_spiinitialize)
#ifdef CONFIG_PIC32MX_SPI2
if (pic32mx_spi2initialize)
{
pic32mx_spiinitialize();
pic32mx_spi2initialize();
}
#endif
configs/mirtoo/src/up_leds.c
+258
View File
@@ -0,0 +1,258 @@
/****************************************************************************
* configs/mirtoo/src/up_leds.c
* arch/arm/src/board/up_leds.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <arch/board/board.h>
#include "pic32mx-internal.h"
#include "mirtoo-internal.h"
/****************************************************************************
* Definitions
****************************************************************************/
/* LED Configuration ********************************************************/
/* The Mirtoo module has 2 user LEDs labeled LED0 and LED1 in the schematics:
*
* --- ----- --------------------------------------------------------------
* PIN Board Notes
* --- ----- --------------------------------------------------------------
* RC8 LED0 Grounded, high value illuminates
* RC9 LED1 Grounded, high value illuminates
*
* The Dimitech DTX1-4000L EV-kit1 supports 3 more LEDs, but there are not
* controllable from software.
*
* If CONFIG_ARCH_LEDS is defined, then NuttX will control these LEDs as
* follows:
* ON OFF
* ------------------------- ---- ---- ---- ----
* LED0 LED1 LED0 LED1
* ------------------------- ---- ---- ---- ----
* LED_STARTED 0 OFF OFF --- ---
* LED_HEAPALLOCATE 1 ON OFF --- ---
* LED_IRQSENABLED 2 OFF ON --- ---
* LED_STACKCREATED 3 ON ON --- ---
* LED_INIRQ 4 ON N/C OFF N/C
* LED_SIGNAL 4 ON N/C OFF N/C
* LED_ASSERTION 4 ON N/C OFF N/C
* LED_PANIC 4 ON N/C OFF N/C
*/
#define GPIO_LED_0 (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTC|GPIO_PIN8)
#define GPIO_LED_1 (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTC|GPIO_PIN9)
/* LED Management Definitions ***********************************************/
#ifdef CONFIG_ARCH_LEDS
# define LED_OFF 0
# define LED_ON 1
# define LED_NC 2
#endif
/* Debug ********************************************************************/
#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_LEDS)
# define leddbg lldbg
# ifdef CONFIG_DEBUG_VERBOSE
# define ledvdbg lldbg
# else
# define ledvdbg(x...)
# endif
#else
# undef CONFIG_DEBUG_LEDS
# undef CONFIG_DEBUG_VERBOSE
# define leddbg(x...)
# define ledvdbg(x...)
#endif
/****************************************************************************
* Private types
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
struct led_setting_s
{
uint8_t led0 : 2;
uint8_t led1 : 2;
uint8_t unused : 4;
};
#endif
/****************************************************************************
* Private Data
****************************************************************************/
/* If CONFIG_ARCH_LEDS is defined then NuttX will control the LEDs. The
* following structures identified the LED settings for each NuttX LED state.
*/
#ifdef CONFIG_ARCH_LEDS
static const struct led_setting_s g_ledonvalues[LED_NVALUES] =
{
{LED_OFF, LED_OFF, 0},
{LED_ON, LED_OFF, 0},
{LED_OFF, LED_ON, 0},
{LED_ON, LED_ON, 0},
{LED_ON, LED_NC, 0},
};
static const struct led_setting_s g_ledoffvalues[LED_NVALUES] =
{
{LED_NC, LED_NC, 0},
{LED_NC, LED_NC, 0},
{LED_NC, LED_NC, 0},
{LED_NC, LED_NC, 0},
{LED_OFF, LED_NC, 0},
};
/* If CONFIG_ARCH_LEDS is not defined, the the user can control the LEDs in
* any way. The following array simply maps the PIC32MX_MIRTOO_LEDn
* index values to the correct LED pin configuration.
*/
#else
static const uint16_t g_ledpincfg[PIC32MX_MIRTOO_NLEDS] =
{
GPIO_LED_0, GPIO_LED_1
};
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: up_setleds
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void up_setleds(FAR const struct led_setting_s *setting)
{
/* LEDs are pulled up so writing a low value (false) illuminates them */
if (setting->led0 != LED_NC)
{
pic32mx_gpiowrite(GPIO_LED_0, setting->led0 == LED_ON);
}
if (setting->led1 != LED_NC)
{
pic32mx_gpiowrite(GPIO_LED_1, setting->led1 == LED_ON);
}
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: pic32mx_ledinit
****************************************************************************/
void pic32mx_ledinit(void)
{
/* Configure output pins */
pic32mx_configgpio(GPIO_LED_0);
pic32mx_configgpio(GPIO_LED_1);
}
/****************************************************************************
* Name: pic32mx_setled
****************************************************************************/
#ifndef CONFIG_ARCH_LEDS
void pic32mx_setled(int led, bool ledon)
{
/* LEDs are pulled up so writing a low value (false) illuminates them */
if ((unsigned)led < PIC32MX_MIRTOO_NLEDS)
{
pic32mx_gpiowrite(g_ledpincfg[led], ledon);
}
}
#endif
/****************************************************************************
* Name: pic32mx_setleds
****************************************************************************/
#ifndef CONFIG_ARCH_LEDS
void pic32mx_setleds(uint8_t ledset)
{
/* Call pic32mx_setled() with ledon == true to illuminated the LED */
pic32mx_setled(PIC32MX_MIRTOO_LED0, (ledset & PIC32MX_MIRTOO_LED0_BIT) != 0);
pic32mx_setled(PIC32MX_MIRTOO_LED1, (ledset & PIC32MX_MIRTOO_LED1_BIT) != 0);
}
#endif
/****************************************************************************
* Name: up_ledon
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void up_ledon(int led)
{
if ((unsigned)led < LED_NVALUES)
{
up_setleds(&g_ledonvalues[led]);
}
}
#endif
/****************************************************************************
* Name: up_ledoff
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void up_ledoff(int led)
{
if ((unsigned)led < LED_NVALUES)
{
up_setleds(&g_ledoffvalues[led]);
}
}
#endif
configs/mirtoo/src/up_spi2.c
+200
View File
@@ -0,0 +1,200 @@
/************************************************************************************
* configs/mirtoo/src/up_spi2.c
* arch/arm/src/board/up_spi2.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <nuttx/spi.h>
#include <arch/board/board.h>
#include "up_arch.h"
#include "chip.h"
#include "pic32mx-internal.h"
#include "pic32mx-pps.h"
#include "mirtoo_internal.h"
#ifdef CONFIG_PIC32MX_SPI2
/************************************************************************************
* Definitions
************************************************************************************/
/* The Mirtoo module as two on-board SPI devices:
*
* SST25VF032B - 32-Mbit SPI Serial FLASH
*
* PGA117 - Zero drift programmable gain amplifier with MUX. The PGA117 offers 10
* analog inputs, a four-pin SPI interface with daisy-chain capability, and hardware
* and software shutdown in a TSSOP-20 package. Only 8 of the analog inputs (PORT0-7)
* are used on the Mirtoo module.
*
* Chip selects:
*
* ------ -------- ------------------------- --------------------------------
* PIN SIGNAL BOARD CONNECTION NOTES
* ------ -------- ------------------------- --------------------------------
* RPA1 SI PGA117 and SST25VF032B SPI2 data OUT (SDO2)
* RPA2 SO PGA117 and SST25VF032B SPI2 data IN (SDI2)
* SCK2 SCK PGA117 and SST25VF032B SPI2 clock
*
* RB7 ~CSAI PGA117 PGA117 chip select (active low)
* RB13 ~CSM SST25VF032B SST25VF032B chip select (active low)
*/
#define GPIO_SI (GPIO_OUTPUT|GPIO_PORTA|GPIO_PIN1)
#define GPIO_SO (GPIO_INPUT|GPIO_PORTA|GPIO_PIN1)
#define GPIO_SCK (GPIO_OUTPUT|GPIO_PORTA|GPIO_PIN1)
#define GPIO_PGA117_CS (GPIO_OUTPUT|GPIO_VALUE_ONE|GPIO_PORTB|GPIO_PIN7)
#define GPIO_SST25VF032B_CS (GPIO_OUTPUT|GPIO_VALUE_ONE|GPIO_PORTB|GPIO_PIN13)
/* The following enable debug output from this file (needs CONFIG_DEBUG too).
*
* CONFIG_DEBUG_SPI - Define to enable basic SPI debug
*/
#ifdef CONFIG_DEBUG_SPI
# define spidbg lldbg
# define spivdbg llvdbg
#else
# define spidbg(x...)
# define spivdbg(x...)
#endif
/************************************************************************************
* Private Functions
************************************************************************************/
/************************************************************************************
* Public Functions
************************************************************************************/
/************************************************************************************
* Name: pic32mx_spi2initialize
*
* Description:
* Called to configure SPI2 chip select GPIO pins for the Mirtoo module.
*
************************************************************************************/
void weak_function pic32mx_spi2initialize(void)
{
uint32_t regval;
/* Make sure that TRIS pins are set correctly. Configure the SPI pins as digital
* inputs and outputs first.
*/
pic32mx_configgpio(GPIO_SI);
pic32mx_configgpio(GPIO_SO);
pic32mx_configgpio(GPIO_SCK);
/* Configure SPI2 data in and data out to use RPA2 and 1, respectively */
putreg32(PPS_INSEL_RPA2, PIC32MX_PPS_SDI2R);
putreg32(PPS_OUTSEL_SDO2, PIC32MX_PPS_RPA1R);
/* Configure the SPI chip select GPIOs */
pic32mx_configgpio(GPIO_PGA117_CS);
pic32mx_configgpio(GPIO_SST25VF032B_CS);
}
/************************************************************************************
* Name: pic32mx_spi2select, pic32mx_spi2status, and pic32mx_spi2cmddata
*
* Description:
* These external functions must be provided by board-specific logic. They are
* implementations of the select, status, and cmddata methods of the SPI interface
* defined by struct spi_ops_s (see include/nuttx/spi.h). All other methods
* including up_spiinitialize()) are provided by common PIC32MX logic. To use
* this common SPI logic on your board:
*
* 1. Provide logic in pic32mx_boardinitialize() to configure SPI chip select
* pins.
* 2. Provide pic32mx_spiNselect() and pic32mx_spiNstatus() functions
* in your board-specific logic. These functions will perform chip selection
* and status operations using GPIOs in the way your board is configured.
* 2. If CONFIG_SPI_CMDDATA is defined in the NuttX configuration, provide
* pic32mx_spiNcmddata() functions in your board-specific logic. These
* functions will perform cmd/data selection operations using GPIOs in the way
* your board is configured.
* 3. Add a call to up_spiinitialize() in your low level application
* initialization logic
* 4. The handle returned by up_spiinitialize() may then be used to bind the
* SPI driver to higher level logic (e.g., calling
* mmcsd_spislotinitialize(), for example, will bind the SPI driver to
* the SPI MMC/SD driver).
*
************************************************************************************/
struct spi_dev_s;
enum spi_dev_e;
void pic31mx_spi2select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
{
spidbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
if (devid == SPIDEV_FLASH)
{
pic32mx_gpiowrite(GPIO_SST25VF032B_CS, !selected);
}
else if (devid == SPIDEV_MUX)
{
pic32mx_gpiowrite(GPIO_PGA117_CS, !selected);
}
}
uint8_t pic31mx_spi2status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
{
return 0;
}
#ifdef CONFIG_SPI_CMDDATA
int pic31mx_spi2cmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd)
{
return 0;
}
#endif
#endif /* CONFIG_PIC32MX_SPI2 */
configs/pic32mx7mmb/include/board.h
+2 -2
View File
@@ -134,8 +134,8 @@
/* LED bits for use with pic32mx_setleds() */
#define PIC32MX_PIC32MX7MMB_LED0_BIT (1 << PIC32MX_PIC32MX7MMB_LED0)
#define PIC32MX_PIC32MX7MMB_LED1_BIT (1 << PIC32MX_PIC32MX7MMB_LED2)
#define PIC32MX_PIC32MX7MMB_LED2_BIT (1 << PIC32MX_PIC32MX7MMB_LED3)
#define PIC32MX_PIC32MX7MMB_LED1_BIT (1 << PIC32MX_PIC32MX7MMB_LED1)
#define PIC32MX_PIC32MX7MMB_LED2_BIT (1 << PIC32MX_PIC32MX7MMB_LED2)
/* If CONFIG_ARCH_LEDs is defined, then NuttX will control the 3 LEDs
* on board the Mikroelektronika PIC32MX7 MMB. The following definitions